Reply by Rob Drown

I have used the Mark II and it is easy to use , repeatable and holds the blade or chisel square. It works well with sandpaper or waterstones. Short waterstones are a bit inefficient because your stroke is so short.

-- The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools. Confucius, 经过艰苦的努力的梦想可以成真